Title: Application of the leakage model to assess exfiltration 
Resource Type: document --> technical publication --> proceedings / conference paper(s) 
Country: EU Projects 
Year of publication: 2004 
Availability: Karpf, C. and Krebs, P. Application of the leakage model to assess exfiltration, 6th International Conference on Urban Drainage Modelling proceedings, Dresden, Germany, 15-17 September 2004 
Author 1/Producer: Karpf, C. 
Other Authors/Producers: Krebs, P. 
Author / Producer Type: EC Project 
Report / download web link (=direct link): http://www.insa-lyon.fr/Laboratoires/URGC-HU/apuss/nrl_051_l ...  
Format (e.g. PDF): PDF 
EUGRIS Keyword(s): Water resources and their management -->Water resources and their management Overview
 
Short description: The exfiltration of waste water from sewer systems in urban areas causes a deterioration of soil and possibly groundwater quality. Beside the simulation of transport and degradation processes in the unsaturated zone and in the aquifer the analysis of the potential impact requires the estimation of quantity and temporal variation of waste water exfiltration. Exfiltration can be assessed by the application of the leakage model. The hydrological approach was originally developed to simulate the interactions between groundwater and surface water, it was adapted to allow for modelling of interactions between groundwater and sewer system. In order to approximate the exfiltration specific model parameters infiltration specific parameters were used as a basis. Scenario analysis of the exfiltration in the City of Dresden from 1997 to 1999 and during the flood event in August 2002 shows the variation and the extent of exfiltration rates. 
Link to Project(s): APUSS Assessing infiltration and exfiltration on the performance of urban sewer systems
 
Submitted By: Dr Stefan Gödeke WhoDoesWhat?      Last update: 14/02/2006

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